My friends, just to summarize everything I did, because I had to search several posts / threads for it. Before all I thanks all the people that made this possible (I don´t remember all, they are a lot!). AcerExtensa, Dryogeshd, etc etc!

As I understand, till date this following way has been successful in getting your device HBoot down and achieve S-OFF, Important thing for that is to change your CID to a universal CID, that is HTC__001.
Through fastboot. Open the command prompt, connect your device by USB cable, check USB debugging is enabled. and enter the following code
Code:
adb reboot bootloader
wait till your device enters bootloader and shows fastboot USB, now enter the following code.

a. For unbranded devices.
Code:
fastboot oem writecid HTC__001

fastboot oem lock

fastboot oem reboot bootloader
Please note that in the cid there are 2 underscores before 001.

b. For branded devices such as Vodafone.
Code:
fastboot oem writecid VODAP001
fastboot oem lock
fastboot reboot bootloader
You can even change that CID to HTC__001. Once you have achieved S-OFF you can change your cid back to original.

2) Run rebuilt.Free 3VO_V2 (to install 1.49.007)

Extract the entire folder to root of C drive on your computer.

Run step1.exe  If do not get any errors run step2.exe  Then run the step3.exe
It updates with European ROM + Hboot 1.49.0007. Às vezes demora vários minutos até avançar. QUANDO/SE ficarem “parados” nesta imagem (já quase no fim)  é só tirar a bateria e boot que está tudo a funcionar.

3) Run Revolutionary
Finally the much awaited S-OFF

- The need to do all the above steps was to finally arrive here. It is essential Hboot 1.49.007.
- Visit http://revolutionary.io and select the appropriate operating system. Download.
- Enable USB debugging mode on your device and connect it to your computer by the USB cable.
- Extract the downloaded zip from revolutionary site to your C drive.
- Run the revolutionary.exe as administrator and this will give you your device serial number.
- Enter the serial number in the space given on the revolutionary.io site and copy the S-off code generated
- Now type the code in the program. Hit enter and wait for it to finish.

(If something goes wrong, or if it says failed. Then recheck your device's boot loader is locked. And try again and again till you succeed.)

************************************************** ***********
NOTE: At the end of this STEP your phone is S-OFF + 1.49.007 + an OLD GB ROM
************************************************** ***********

- OPEN THE BACK CASE and REMOVE microSD
- POWER + VOL DOWN *without microSD
- SELECT RECOVERY (and press POWER)
*when the screen goes white while it loads Recovery, INSERT MICROSD* (you can now close the back case)

Updated my unbranded Evo 3D GSM with the official OTA. After that the GPS doesn't work very well at all, it has got a life of its own even if the phone is stationary the position keep jumping around.

I've been talking to HTC and even a factory reset did nothing to solve this problem. They want me to send in the phone for "service". But if this is a general problem then I don't see what they can do other than wait for a fix from HTC.

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